Stop block and display panel packaging structure

ABSTRACT

The present disclosure discloses a stop block and a display panel packaging structure, the stop block includes a support and at least one buffer, and the support includes at least one mounting portion and at least one fixing portion; the buffer is attached to and covers the fixing portion.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a Continuation Application of PCT Application No. PCT/CN2018115164 filed on Nov. 13, 2018, which claims the benefit of Chinese Patent Application No. 201821439878.5, filed on Sep. 3, 2018, which is incorporated herein by reference in its entirety.

FIELD

The present disclosure relates to the field of display device packaging technology, and in particular, relates to a stop block and a display panel packaging structure using the stop block.

BACKGROUND

Liquid crystal glass screen, a thin glass sheet with extremely flat surface, is a basic component of liquid crystal display device. The liquid crystal glass screen is prone to be broken and scrapped when subjected to collision or shake by external force, thus requiring a large amount of manpower or material resources to prevent it from damage during transportation. Therefore, how to transport liquid crystal glass safely and effectively is a very important issue.

Most of the packaging boxes of liquid crystal glass screen employ independent plastic bracket and soft rubber and plastic material, both of which are placed in the box to transport liquid crystal glass screen. However, when placed in the packaging box, the four corners of the liquid crystal glass screen are prone to touch the top of the plastic bracket at the edge of the packaging box, thus causing damage to the liquid crystal glass screen.

SUMMARY

The main purpose of the present disclosure is to provide a stop block, aiming at providing a stop block which has good buffering performance and a simple structure, and is convenient to install.

In order to achieve the above object, the present disclosure provides a stop block, which includes:

a support, comprising at least one mounting portion and at least one fixing portion connected to the mounting portion; and

at least one buffer, wherein the buffer is attached to the fixing portion, and covers a surface of the fixing portion adjacent to the mounting portion and two lateral sides connecting the surface and facing to each other.

In some embodiments, the buffer comprises a first buffer part, a second buffer part and a third buffer part perpendicular to the first buffer part, the second buffer part and the third buffer part are respectively defined at two ends of the first buffer part facing to each other, and the second buffer part, the first buffer part and the third buffer part cooperatively form an receiving cavity with a U-shaped structure, the fixing portion is accommodated in the receiving cavity, the first buffer part abuts against the surface of the fixing portion, the second buffer part and the third buffer part respectively abuts against two lateral sides of the fixing portion facing to each other.

In some embodiments, the first buffer part, the second buffer part and the third buffer part are integrally formed.

In some embodiments, a step surface is formed at the joint between the side of the mounting portion and the side of the fixing portion, the location of the second buffer part or the third buffer part is limited by the step surface, and the thicknesses of the second buffer part and the third buffer part are equal to the height of the step surface.

In some embodiments, the heights of the second buffer part and the third buffer part equal the thickness of the fixed portion.

In some embodiments, the second buffer part and/or the third buffer part respectively defines an extension part adjacent to the mounting portion, a limiting member is protruded from the extension part, the fixing portion defines a limiting hole adjacent to the step surface, and the second buffer part and/or the third buffer part is/are connected to the side of the fixing portion by the matching of the limiting member with the limiting hole.

In some embodiments, the support includes two mounting portions and two fixing portions which are defined with an included angle, the two mounting portions are defined adjacent to each other, the two fixing portions are defined adjacent to each other, the stop block includes two buffers, each buffer attaches to one fixing portion, and covers one surface of the fixing portion adjacent to the mounting portion and two lateral sides which connect with the surface and face to each other.

In some embodiments, a space is defined on the support at the joint between adjacent fixing portions.

The present disclosure also provides a display panel packaging structure, which includes a box body and a plurality of stop blocks as described above,

and the box body defines a cavity for accommodating the display panel, the inner side wall of the cavity defines a mounting groove, the mounting portion of the support is accommodated in the mounting groove, the fixing portion of the support attaches to the inner side wall of the cavity, and the buffer is defined on the side of the fixing portion facing away from the inner side wall of the cavity.

In some embodiments, the bottom wall of the cavity defines a limiting groove communicating with the mounting groove, and each end of the fixing portion and the buffer facing the bottom wall of the cavity is limited to be located in the limiting groove.

The stop block of the present disclosure comprises a support and at least one buffer, and the support includes at least one mounting portion and at least one fixing portion connected to the mounting portion, the buffer is attached to the fixing portion and covers a surface of the fixing portion adjacent to the mounting portion and two lateral sides which face to each other and connect with the surface, thereby avoiding direct contact between the four corners of the liquid crystal glass screen and the support when the display panel (such as the liquid crystal glass screen) is packaged and transported, and protecting the liquid crystal glass screen from being damaged due to collision with the support. Furthermore, the buffer is simultaneously covered on the two lateral sides of the fixing portion that face to each other, so that the liquid crystal glass screen is protected from being damaged by collision with the support when the stop block is installed in the box body in the forward direction or in the reverse direction. The stop block provided by the present disclosure may not only have good performance in buffer, but also have a simple structure and may be conveniently installed in the box body.

BRIEF DESCRIPTION OF THE DRAWINGS

To illustrate the technical schemes according to the embodiments of the present disclosure more clearly, the accompanying drawings for describing the embodiments are introduced briefly in the following. Apparently, the accompanying drawings in the following description are only about some embodiments of the present disclosure, and persons of ordinary skill in the art may derive other drawings from the accompanying drawings without creative efforts.

FIG. 1 is a schematic diagram of the structure of a stop block in an embodiment of the present disclosure;

FIG. 2 is an explosion diagram of the structure of a stop block in an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of the structure of a support in an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of the structure of a buffer in an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of the structure of a display panel packaging structure in an embodiment of the present disclosure;

FIG. 6 is an enlarged schematic view at A in FIG. 5.

The implementation of the object of the present disclosure, and its functional features and advantages will be further illustrated in combination with embodiments with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions of the embodiments of the present disclosure will be clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the embodiments to be described are only a part rather than all of the embodiments of the present disclosure. All other embodiments obtained by persons skilled in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present disclosure are only set to explain the relative positional relationship, movement, etc. between the components in a certain posture (as shown in the drawings), and if the specific posture changes, the directional indication changes accordingly.

In this disclosure, unless otherwise expressly specified and defined, the terms “connect”, “fix” and the like shall be broadly understood, for example, “fix” may be a fixed connection, a detachable connection, or an integral body; It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium. It may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meaning of the above terms in this disclosure may be understood according to the specific circumstances.

In addition, in this disclosure, the descriptions such as “first” and “second” are set for the purpose of description only, and are not to be understood as indicating or implying its relative importance or implicitly indicating the number of indicated technical features. Therefore, the character indicated by the “first”, the “second” may express or impliedly include at least one character. In addition, the technical proposal of each exemplary embodiment may be combined with each other, however the technical proposal must base on that the ordinary skill in that art may realize the technical proposal, when the combination of the technical proposals occurs contradiction or cannot be implemented, it should consider that the combination of the technical proposals does not existed, and is not contained in the protection scope required by the present disclosure.

The present disclosure provides a stop block 100, which may be configured to package and transport not only display panels, but also precision instruments, instruments, precious instruments, household appliances, glass and ceramic products, handicrafts, valuables, high-grade handicrafts and the like.

Referring to FIGS. 1 to 6, in the embodiment of the present disclosure, the stop block 100 includes a support 10 and at least one buffer 20, the support 10 includes at least one mounting portion 11 and at least one fixing portion 12 connected to the mounting portion 11; the buffer 20 is attached to the fixing portion 1, and covers a surface of the fixing portion 12 adjacent to the mounting portion 11 and two lateral sides connecting the surface and facing to each other.

Specifically, in this embodiment, the stop block 100 is optionally configured to a display panel packaging structure 600, and the display panel packaging structure 600 is configured to package display panel. The display panel includes twisted nematic (TN) panel, vertical alignment (VA) panel, in-Plane switching (IPS) panel, continuous pinwheel alignment (CPA) panel, advanced super dimension switch (ADSDS) panel, etc. During its transportation or handling, a plurality of display panels may be stacked in the display panel packaging structure 600. In order to prevent the display panels from being damaged due to collision and friction between the display panels, a buffer plate is provided between two adjacent display panels in this embodiment to buffer and protect the two adjacent display panels.

It may be appreciated that the display panel may be a liquid crystal panel, which is connected to the circuit board through a chip on flex or a chip on film (COF), and configured to realize signal transmission. The liquid crystal panel is easy to be broken to scrap when it is subjected to collision or shake by external force, so it is especially necessary to prevent it from damage during its transportation. As shown in FIGS. 5 and 6, in the present embodiment, in order to prevent the display panel from being easily broken and scrapped when subjected to collision or shake by external forces during transportation or transportation, a stop block 100 is provided in the display panel packaging structure 600.

Referring to FIGS. 1 to 4, in this embodiment, the stop block 100 includes a support 10 and at least one buffer 20, the support 10 is configured to support and fixedly mount the stop block 100, and the buffer 20 is mainly configured to buffer the display panel to prevent the display panel from being easily broken and scrapped when it is subjected to collision or shake by an external force. It may be understood that the support 10 is made of acrylonitrile-butadiene-styrene plastic (ABS), polyethylene (PE) or polypropylene (PP) and other materials, of course, the material of the support 10 includes but is not limited to ABS, PE, PP and so on, which is not limited here. The buffer 20 is made of silica gel, foam or other elastic material, and is not limited here.

In this embodiment, the support 10 includes at least one mounting portion 11 and at least one fixing portion 12 connected to the mounting portion 11. The stop block 100 is stably mounted by connecting the mounting portion 11 of the support 10 with the display panel packaging structure 600. The fixing portion 12 of the support 10 is configured to mount the buffer 20, i.e., the buffer 20 is attached to the fixing portion 12, and covers a surface of the fixing portion 12 adjacent to the mounting portion 11 and two lateral sides connecting the surface and facing to each other.

Optionally, the support 10 includes one or more mounting portions 11, and one or more fixing portions 12 connected to the mounting portions 11. As shown in FIG. 3, in this embodiment, the support 10 optionally includes two mounting portions 11 and two fixing portions 12 connected to the mounting portions 11, thereby facilitating the mounting of the stop block 100 at the corner of the box body of the display panel packaging structure 600. Of course, the stop block 100 may also be installed at the lateral side of the box body, thus the fixing portion 12 of the support 10 is defined in parallel with the lateral side of the box body.

Of course, in this embodiment, the mounting portion 11 and the fixing portion 12 of the support 10 may be defined in the same plane or defined with an included angle, and the specific structure is determined according to the structure installed in the box body, which is not limited here.

As shown in FIGS. 1 to 3, in some embodiments, the support 10 includes two mounting portions 11 and two fixing portions 12 defined with an included angle, the two mounting portions 11 are defined adjacent to each other, the two fixing portions 12 are defined adjacent to each other, and the stop block 100 includes two buffers 20, each of which is attached to a fixing portion 12, and covers a surface of the fixing portion 12 adjacent to the mounting portion 11, and two lateral sides connecting the surface and facing to each other.

Specifically, the support 10 has a cross-shaped structure, two mounting portions 11 are defined adjacent to each other and with a right angle between them, and two fixing portions 12 are defined adjacent to each other and with a right angle between them. When the stop block 100 is installed in the box body of the display panel packaging structure 600, the two mounting portions 11 are connected and fixed to the box body, and the two fixing portions 12 are attached to the lateral side of the box body. It may be understood that each fixing portion 12 is defined with a buffer 20, and optionally, the buffer 20 covers the surface and lateral sides of the fixing portion 12 that are not in contact with the box body, so that the buffer effect on the display panel may be achieved while saving materials.

It may be appreciated that by covering the buffer 20 on one surface of the fixing portion 12 adjacent to the mounting portion 11, and the two lateral sides connecting the surface and facing to each other, direct contact between the four corners of the display panel and the support 10 in packaging and transportation of the display panel is avoided, and the display panel is protected from being damaged by colliding with the support 10. Further, the buffer 20 is simultaneously covered on two lateral sides of the fixing portion 12 facing to each other 12, so that the stop block 100 may protect the display panel from being damaged by colliding with the support 10 regardless of whether the stop block 100 is installed in the box body of the display panel packaging structure 600 in the forward direction or in the box body of the display panel packaging structure 600 in the reverse direction. The stop block 100 provided by the present disclosure may not only has good buffer performance, but also has a simple structure and may be conveniently installed in the box body.

In some embodiments, as shown in FIGS. 1, 2 and 4, the buffer 20 includes a first buffer 21, and a second buffer 22 and a third buffer 23 perpendicular to the first buffer 21. The second buffer 22 and the third buffer 23 are respectively defined at two ends of the first buffer 21 facing to each other, and the second buffer 22, the first buffer 21 and the third buffer 23 cooperatively form an receiving cavity 24 of a U-shaped structure. The fixing portion 12 is accommodated in the receiving cavity 24, the first buffer 21 abuts the surface of the fixing portion 12, the second buffer 22 and the third buffer 23 respectively abuts against two lateral sides of the fixing portion 12.

Specifically, the fixing portion 12 of the support 10 is a plate-like structure. In order to make the buffer 20 cover a surface of the fixing portion 12 adjacent to the mounting portion 11 and two lateral sides connecting the surface and facing to each other, the first buffer part 21, the second buffer part 22 and the third buffer part 23 of the buffer 20 cooperatively form a receiving cavity 24 of a U-shaped structure. The plate-like fixing portion 12 is inserted into the receiving cavity 24, making the first buffer part 21 of the buffer 20 abut against the surface of the fixing portion 12, and the second buffer part 22 and the third buffer part 23 respectively abut against two sides of the fixing portion 12 facing to each other.

It may be understood that the lateral sides of the fixing portion 12 and the surfaces connecting the lateral sides may be defined perpendicular to each other, but may also be defined with an included angle, which is not limited here. In order that the buffer member 20 may be securely sleeved on the fixing portion 12, the receiving cavity 24 of U-shaped structure formed cooperatively by the first buffer part 21, the second buffer part 22 and the third buffer part 23 of the buffer 20 is matched with the structure of the fixing portion 12.

In this embodiment, the stop block 100 may prevent the display panel from being damaged by collision regardless of its installation in the box body of the display panel packaging structure 600 in the forward direction or its installation in the box body of the display panel packaging structure 600 in the reverse direction. The second buffer part 22 and the third buffer part 23 of the buffer 20 are defined facing to each other at both ends of the first buffer part 21, that is, when the buffer 20 is connected to the fixed portion 12, the second buffer part 22 and the third buffer part 23 respectively abut against the two lateral sides of the fixed portion 12 facing to each other.

Thus, when the stop block 100 is installed in the box body of the display panel packaging structure 600 in the forward direction, the second buffer part 22 is flush with the top of the side wall of the box body, and the first buffer part 21 and the second buffer part 22 play a role in buffering and protecting the display panel when the display panel packaging is placed in the display panel packaging structure 600. When the stop block 100 is reversely installed in the box body of the display panel packaging structure 600, the third buffer part 23 is flush with the top of the side wall of the box body, and the first buffer part 21 and the third buffer part 23 play a role in buffering and protecting the display panel in the process of putting the display panel packaging into the display panel packaging structure 600.

In some embodiments, as shown in FIGS. 1, 2 and 4, the first buffer part 21, the second buffer part 22 and the third buffer part 23 are integrally formed. It may be understood that the first buffer part 21, the second buffer part 22 and the third buffer part 23 are integrally formed, which is beneficial to improving the processing and production efficiency of the buffer 20. Of course, in other embodiments, the first buffer part 21, the second buffer part 22, and the third buffer part 23 of the buffer 20 may be also defined separately in order to facilitate the mounting and fixing of the buffer 20 and the fixing portion, which is not limited here.

In some embodiments, as shown in FIGS. 2 and 3, a stepped surface 13 is formed at the joint between the side of the mounting portion 11 and the side of the fixing portion 12, the second buffer part 22 or the third buffer part 23 is limited by the stepped surface 13, and the thicknesses of the second buffer part 22 and the third buffer part 23 are equal to the height of the stepped surface 13.

It may be understood that the step surface 13 is configured not only to limit the second buffer 22 or the third buffer 23, but also to prevent the second buffer 22 or the third buffer 23 from sliding when mounted on the fixed part 12. At the same time, it is also advantageous to realize that the lateral side of the mounting portion 11 is flush with the lateral side where the buffer 20 is fixed to the fixing portion 12. Optionally, the two lateral sides of the fixing portion 12 facing to each other and the two lateral sides of the mounting portion facing to each other cooperatively form step surfaces 13. Thereby, the second buffer part 22 and the third buffer part 23 are limited by the step surfaces 13 on the two sides of the fixing portion 12 facing to each other, respectively. Thereby, the vertical distance between the outer side wall of the second buffer part 22 of the buffer 20 and the outer side wall of the third buffer part 23 equals the height of the mounting portion 11 of the support 10, that is, the thicknesses of the second buffer part 22 and the third buffer part 23 equal the height of the step surface 13.

As shown in FIGS. 1 to 4, the heights of the second buffer part 22 and the third buffer part 23 equal the thickness of the fixing portion 12. Thereby, when the fixing portion 12 is accommodated in the accommodating cavity 24, the second buffer part 22 and the third buffer part 23 do not protrude from the surface of the fixing portion 12 facing away from the buffer 20, which facilitates the stable mounting of the buffer stop 100 in the box body of the display panel packaging structure 600.

In some embodiments, as shown in FIGS. 2 and 4, the second buffer part 22 and/or the third buffer part 23 are defined with an extension 25 adjacent to the mounting portion 11, a limiting member 26 is protruded from the extension part 25, the fixing portion 12 defines a limiting hole 14 adjacent to the step surface 13, and the second buffer part 22 and/or the third buffer part 23 is/are connected to the side of the fixing portion 12 by the matching of the limiting member 26 with the limiting hole 14.

The definition of the extension 25 facilitates the firm connection of the buffer 20 with the fixing portion 12. Furthermore, a limiting member 26 is protruded from the extension part 25, the fixing portion 12 defines a limiting hole 14 adjacent to the step surface 13. By the cooperation of the limiting member 26 and the limiting hole 14, the buffering member 20 is further firmly connected with the fixing portion 12 to prevent the buffering member 20 from falling off from the fixing portion 12. It may be understood that the limiting member 26 and the limiting hole 14 may be a convex and concave fit structure, or a snap fit structure, although other structures capable of firmly connecting the buffering member 20 with the fixing portion 12, such as screw and screw fit, which are not limited here.

In an embodiment, as shown in FIGS. 1 to 3, the support 10 is formed with a space 15 at the junction of two adjacent fixing portions 12. As may be appreciated, the definition of the space 15 is not only beneficial to saving the processing material of the buffer 20; but also favorable for protecting the corners of the display panel from being damaged when the display panel is mounted or placed in the box body of the display panel packaging structure 600.

Referring to FIGS. 5 and 6, the present disclosure also proposes a display panel packaging structure 600 including a box body 400 and a plurality of stop blocks 100. The specific structure of the stop blocks 100 refers to the above embodiments. Since the display panel packaging structure 600 employs all the technical schemes of all the above embodiments, it has at least all the effects brought about by the technical schemes of the above embodiments and will not be described in detail here.

The box 400 defines a receiving cavity 410 which is configured to accommodate a display panel, the inner side wall of the accommodation cavity 410 is defined with a mounting groove 420, the mounting portion 11 of the support 10 is accommodated in the mounting groove 420, the fixing portion 12 of the support 10 is attached to the inner side wall of the receiving cavity 410, and the buffer 20 is defined on the side of the fixing portion 12 facing away from the inner side wall of the receiving cavity 410.

It may be appreciated that the mounting and fixing of the stop block 100 is realized through the cooperation of the mounting portion 11 of the support 10 and the mounting groove 420. The fixing portion 12 is attached to the inner side wall of the receiving cavity 410, which is beneficial to increasing the mounting stability of the stop block 100. The buffer 20 is defined on the side of the fixing portion 12 facing away from the inner side wall of the receiving cavity 410, so that the buffer 20 may buffer the display panel mounted or placed in the receiving cavity 410 of the box 400 and prevent the display panel from being damaged.

In some embodiments, as shown in FIG. 6, the bottom wall of the receiving cavity 410 is defined with a limiting groove 430 communicating with the mounting groove 420, and the ends of the fixing portion 12 and the buffer 20 facing the bottom wall of the receiving cavity 410 are limited in the limiting groove 430.

As may be appreciated, the definition of the limiting groove 430 is advantageous to further realize the stable installation of the stop block 100. When the stop block 100 is installed in the receiving cavity 410 of the box 400, the first buffer part 21 of the buffer 20 is parallel to the inner side wall of the cavity 410, and one of the second buffer part 22 and the third buffer part 23 is located in the limiting groove 430 and abuts against the bottom wall of the limiting groove 430, with the other one being flush with the side wall of the box 410. Thus, when the stop block 100 is installed in the cavity 410 of the box 400, one of the second buffer part 22 and the third buffer part 23 together with the first buffer part 21 plays a buffering role on the display panel to avoid the damage of the display panel. And, such definition is not only beneficial to improving the buffering function of the stop block 100, but also beneficial to improving the installation convenience of the stop block 100.

The display panel packaging structure 600 provided by the present disclosure not only has a simple structure, but also has good buffering performance.

The above is only the optional embodiments of the present disclosure, and is not therefore location limiting the scope of the patent disclosure. Any equivalent structural change made under the concept of the present disclosure using the contents of the present disclosure specification and drawings, or directly/indirectly applied in other related technical fields, is included in the scope of the patent protection of the present disclosure. 

What is claimed is:
 1. A stop block, wherein the stop block comprises: a support, comprising at least one mounting portion and at least one fixing portion connected to the mounting portion; and at least one buffer, wherein the buffer is attached to the fixing portion, and covers a surface of the fixing portion adjacent to the mounting portion and two lateral sides connecting the surface, the two lateral sides face to each other.
 2. The stop block according to claim 1, wherein the buffer comprises a first buffer part, a second buffer part and a third buffer part both of which are perpendicular to the first buffer part, the second buffer part and the third buffer part are respectively defined at two ends of the first buffer part, and the second buffer part, the first buffer part, and the third buffer part cooperatively form an receiving cavity with a U-shaped structure, the fixing portion is received in the receiving cavity, the first buffer part abuts against the surface of the fixing portion, the second buffer part and the third buffer part respectively abuts against two lateral sides of the fixing portion which face to each other.
 3. The stop block according to claim 2, wherein the first buffer part, the second buffer part, and the third buffer part are integrally formed.
 4. The stop block according to claim 2, wherein a step surface is formed at the joint between the side of the mounting portion and the side of the fixing portion, the location of the second buffer part or the third buffer part is limited by the step surface, and the thicknesses of the second buffer part and the third buffer part are equivalent to the height of the step surface.
 5. The stop block according to claim 4, wherein the heights of the second buffer part and the third buffer part are equivalent to the thickness of the fixed portion.
 6. The stop block according to claim 4, wherein one side of the second buffer part adjacent to the mounting portion defines an extension part, a limiting member is protruded from the extension part, the fixing portion defines a limiting hole adjacent to the step surface, and the second buffer part is connected to the side of the fixing portion by the matching of the limiting member with the limiting hole.
 7. The stop block according to claim 4, wherein one side of the third buffer part adjacent to the mounting portion defines an extension part, a limiting member is protruded from the extension part, the fixing portion defines a limiting hole adjacent to the step surface, and the third buffer part is connected to the side of the fixing portion by the matching of the limiting member with the limiting hole.
 8. The stop block according to claim 4, wherein the second buffer part and the third buffer part respectively defines an extension part adjacent to the mounting portion, a limiting member is protruded from the extension part, the fixing portion defines a limiting hole adjacent to the step surface, and the second buffer part and the third buffer part are connected to the side of the fixing portion by matching of the limiting member with the limiting hole.
 9. The stop block according to claim 1, wherein the support comprises two mounting portions and two fixing portions which are defined with included angle, the two mounting portions are defined adjacent to each other, the two fixing portions are defined adjacent to each other, the stop block comprises two buffers, each buffer attaches to one fixing portion, and covers one surface of the fixing portion adjacent to the mounting portion and two lateral sides which connect with the surface and face to each other.
 10. The stop block according to claim 2, wherein the support comprises two mounting portions and two fixing portions which are defined with an included angle, the two mounting portions are defined adjacent to each other, the two fixing portions are defined adjacent to each other, the stop block comprises two buffers, each buffer attaches to one fixing portion, and covers one surface of the fixing portion adjacent to the mounting portion and two lateral sides which connect with the surface and face to each other.
 11. The stop block according to claim 9, wherein a space is defined in the support at the joint between adjacent fixing portions.
 12. A stop block, wherein the stop block comprises: a support, comprising two mounting portions and at two fixing portions connected to the mounting portions; and two buffers, each buffer attaches to one fixing portion, and covers one surface adjacent to the mounting portion of the fixing portion and two lateral sides which connect with the surface, the two lateral sides face to each other.
 13. The stop block according to claim 12, wherein each buffer comprises a first buffer part, a second buffer part and a third buffer part perpendicular to the first buffer part, the second buffer part and the third buffer part are defined respectively at two ends of the first buffer part facing to each other, and the second buffer part, the first buffer part and the third buffer part cooperatively form an receiving cavity with a U-shaped structure, the fixing portion is accommodated in the receiving cavity, the first buffer part abuts against the surface of the fixing portion, the second buffer part and the third buffer part respectively abuts against two lateral sides of the fixing portion, the two lateral sides face to each other.
 14. The stop block according to claim 13, wherein the first buffer part, the second buffer part and the third buffer part are integrally formed.
 15. The stop block according to claim 13, wherein a step surface is formed at the joint between the side of each mounting portion and the side of each fixing portion, the location of the second buffer part or the third buffer part is limited by the step surface, and the thicknesses of the second buffer part and the third buffer part are equal to the height of the step surface.
 16. The stop block according to claim 15, wherein the heights of the second buffer part and the third buffer part equal the thickness of the fixed portion.
 17. The stop block according to claim 15, wherein one side adjacent to the mounting portion of the second buffer part defines an extension part, a limiting member is protruded from the extension part, the fixing portion defines a limiting hole adjacent to the step surface, and the second buffer part is connected to the side of the fixing portion by the matching of the limiting member with the limiting hole.
 18. The stop block according to claim 12, wherein a space is defined on the support at the joint between adjacent fixing portions.
 19. A display panel packaging structure, comprising a box body and a plurality of stop blocks; each stop block comprises: a support, comprising at least one mounting portion and at least one fixing portion connected to the mounting portion; and at least one buffer, wherein the buffer is attached to the fixing portion, and covers a surface of the fixing portion adjacent to the mounting portion and two lateral sides connecting the surface, the two lateral sides face to each other; wherein the box body defines a cavity for accommodating the display panel, the inner side wall of the cavity defines a mounting groove, the mounting portion of the support is accommodated in the mounting groove, the fixing portion of the support attaches to the inner side wall of the cavity, and the buffer is defined on the side of the fixing portion facing away from the inner side wall of the cavity.
 20. The display panel packaging structure according to claim 19, wherein the bottom wall of the cavity defines a limiting groove communicating with the mounting groove, and each end of the fixing portion and the buffer facing the bottom wall of the cavity is limited in the limiting groove. 